Type 05A Flange

The UNI 6091 standard (now obsolete) concerned steel flanges for piping, mainly used in industrial and civil systems.
It was an Italian standard specifying the geometric, dimensional, and technical characteristics of flanges.

Characteristics of UNI 60-91/92/93/94/95 Flanges:

• The application of blind weld flanges is for low-pressure piping;
• Materials for this type are carbon steel or stainless steel;
• Nominal pressure ratings include PN 6, PN 10, PN 16, PN 25, PN 40;
• Nominal diameters range from DN 10 to DN 2,000. However, the most commonly used sizes, due to their lower thickness compared to EN standards, range from DN 600 to DN 1600.